<!DOCTYPE html> <html> <head> <title>If-else-if ladder</title> <script type="text/javascript"> var a="fist letter"; if(a =="first letter") { document.write("1 is the first natural number"); } else if (a=="first letter") { document.write("a is the first letter"); } else { document.write("nothing"); } </script> </head> <body> </body> </html>